n this occurs, Alzheimer's disease may become more feared than cancer is today, according to Dr. Robert Butler of the National Institute on Aging. The past few decades have seen an increase in the prolongation of life and in the absolute number of older persons that is absolutely unparalleled in history (Alzheimer's disease, 1982). John C.S. Breitner of Johns Hopkins Alzheimer's Research Center puts it this way: "We're seeing the tip of the iceberg. As the population ages and more and more people survive into their eighties, we're going to see a higher prevalence rate for dementia. We're sitting on a time bomb" (Herbert, 1982, p. 270).
Diagnosis of Alzheimer's disease is very difficul
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